GUI控件slider的使用详细代码演示，强推荐,Slider controls the use of GUI code a detailed presentation, strong recommendation

趣味调色板。通过改变红、绿、蓝三种基本颜色的比例，显示调色结果。有3个滚动条控件用来在程序执行时调整三原色的配比比例。程序中使用RGB函数-Interesting palette. By changing the red, green, blue ratio of the three basic colors, display color results. There are 3 slider control to adjust the primary colors in the program